Can anyone explain a step by step on how to get this specific graph. I've been working on replicating this for 2 days and I'm not getting the results as seen in this picture. I would like someone with some excel experience to assist. Considering the links shown in the picture I was assuming you could get this data from the interactive "fluview" map but the only thing I got from there was the raw data up to 2020 week 11. Any help would be appreciated.

https://twitter.com/Inevitable_ET/status/1246860418385162241